Immunogen: Synthetic peptide located between aa252-301 of human ROBO2 (Q9HCK4, NP_002933). Percent identity by BLAST analysis: Human, Chimpanzee, Gorilla, Gibbon, Monkey, Galago, Marmoset, Mouse, Rat, Elephant, Dog, Bovine, Rabbit, Horse, Pig, Zebra finch, Chicken, Platypus (100%); Bat (92%); Opossum (85%).